1 /***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
18 ***************************************************************************/
21 * Handles all CD-ROM registers and functions.
27 #include "arm_features.h"
31 #define CDR_LOG SysPrintf
36 #define CDR_LOG_I SysPrintf
38 #define CDR_LOG_I(...)
41 #define CDR_LOG_IO SysPrintf
43 #define CDR_LOG_IO(...)
45 //#define CDR_LOG_CMD_IRQ
48 static unsigned char *pTransfer;
49 static s16 read_buf[CD_FRAMESIZE_RAW/2];
51 /* CD-ROM magic numbers */
52 #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
65 #define CdlSetfilter 13
67 #define CdlGetparam 15
75 #define CdlSetclock 23
76 #define CdlGetclock 24
84 char *CmdName[0x100]= {
85 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
86 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
87 "CdlStop", "CdlPause", "CdlReset", "CdlMute",
88 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam",
89 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
90 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
91 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
92 "CdlInit", NULL, "CDlReadToc", NULL
95 unsigned char Test04[] = { 0 };
96 unsigned char Test05[] = { 0 };
97 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
98 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
99 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
105 #define Acknowledge 3
110 #define MODE_SPEED (1<<7) // 0x80
111 #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
112 #define MODE_SIZE_2340 (1<<5) // 0x20
113 #define MODE_SIZE_2328 (1<<4) // 0x10
114 #define MODE_SIZE_2048 (0<<4) // 0x00
115 #define MODE_SF (1<<3) // 0x08 channel on/off
116 #define MODE_REPORT (1<<2) // 0x04
117 #define MODE_AUTOPAUSE (1<<1) // 0x02
118 #define MODE_CDDA (1<<0) // 0x01
121 #define STATUS_PLAY (1<<7) // 0x80
122 #define STATUS_SEEK (1<<6) // 0x40
123 #define STATUS_READ (1<<5) // 0x20
124 #define STATUS_SHELLOPEN (1<<4) // 0x10
125 #define STATUS_UNKNOWN3 (1<<3) // 0x08
126 #define STATUS_UNKNOWN2 (1<<2) // 0x04
127 #define STATUS_ROTATING (1<<1) // 0x02
128 #define STATUS_ERROR (1<<0) // 0x01
131 #define ERROR_NOTREADY (1<<7) // 0x80
132 #define ERROR_INVALIDCMD (1<<6) // 0x40
133 #define ERROR_INVALIDARG (1<<5) // 0x20
135 // 1x = 75 sectors per second
136 // PSXCLK = 1 sec in the ps
137 // so (PSXCLK / 75) = cdr read time (linuzappz)
138 #define cdReadTime (PSXCLK / 75)
141 DRIVESTATE_STANDBY = 0,
143 DRIVESTATE_RESCAN_CD,
144 DRIVESTATE_PREPARE_CD,
154 static struct CdrStat stat;
156 static unsigned int msf2sec(const u8 *msf) {
157 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
160 // for that weird psemu API..
161 static unsigned int fsm2sec(const u8 *msf) {
162 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
165 static void sec2msf(unsigned int s, u8 *msf) {
166 msf[0] = s / 75 / 60;
167 s = s - msf[0] * 75 * 60;
174 #define CDR_INT(eCycle) { \
175 psxRegs.interrupt |= (1 << PSXINT_CDR); \
176 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
177 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
178 new_dyna_set_event(PSXINT_CDR, eCycle); \
182 #define CDREAD_INT(eCycle) { \
183 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
184 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
185 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
186 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
189 // cdrLidSeekInterrupt
190 #define CDRLID_INT(eCycle) { \
191 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
192 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
193 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
194 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
198 #define CDRMISC_INT(eCycle) { \
199 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
200 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
201 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
202 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
205 #define StopReading() { \
208 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
210 cdr.StatP &= ~(STATUS_READ|STATUS_SEEK);\
213 #define StopCdda() { \
215 if (!Config.Cdda) CDR_stop(); \
216 cdr.StatP &= ~STATUS_PLAY; \
218 cdr.FastForward = 0; \
219 cdr.FastBackward = 0; \
220 /*SPU_registerCallback( SPUirq );*/ \
224 #define SetResultSize(size) { \
226 cdr.ResultC = size; \
227 cdr.ResultReady = 1; \
230 static void setIrq(void)
232 if (cdr.Stat & cdr.Reg2)
233 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
236 // timing used in this function was taken from tests on real hardware
237 // (yes it's slow, but you probably don't want to modify it)
238 void cdrLidSeekInterrupt()
240 switch (cdr.DriveState) {
242 case DRIVESTATE_STANDBY:
243 cdr.StatP &= ~STATUS_SEEK;
245 if (CDR_getStatus(&stat) == -1)
248 if (stat.Status & STATUS_SHELLOPEN)
251 cdr.DriveState = DRIVESTATE_LID_OPEN;
256 case DRIVESTATE_LID_OPEN:
257 if (CDR_getStatus(&stat) == -1)
258 stat.Status &= ~STATUS_SHELLOPEN;
261 if (!(cdr.StatP & STATUS_SHELLOPEN)) {
263 cdr.StatP |= STATUS_SHELLOPEN;
265 // could generate error irq here, but real hardware
266 // only sometimes does that
267 // (not done when lots of commands are sent?)
269 CDRLID_INT(cdReadTime * 30);
272 else if (cdr.StatP & STATUS_ROTATING) {
273 cdr.StatP &= ~STATUS_ROTATING;
275 else if (!(stat.Status & STATUS_SHELLOPEN)) {
279 // cdr.StatP STATUS_SHELLOPEN is "sticky"
280 // and is only cleared by CdlNop
282 cdr.DriveState = DRIVESTATE_RESCAN_CD;
283 CDRLID_INT(cdReadTime * 105);
288 CDRLID_INT(cdReadTime * 3);
291 case DRIVESTATE_RESCAN_CD:
292 cdr.StatP |= STATUS_ROTATING;
293 cdr.DriveState = DRIVESTATE_PREPARE_CD;
295 // this is very long on real hardware, over 6 seconds
296 // make it a bit faster here...
297 CDRLID_INT(cdReadTime * 150);
300 case DRIVESTATE_PREPARE_CD:
301 cdr.StatP |= STATUS_SEEK;
303 cdr.DriveState = DRIVESTATE_STANDBY;
304 CDRLID_INT(cdReadTime * 26);
309 static void Find_CurTrack(const u8 *time)
313 current = msf2sec(time);
315 for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) {
316 CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD);
317 sect = fsm2sec(cdr.ResultTD);
318 if (sect - current >= 150)
323 static void generate_subq(const u8 *time)
325 unsigned char start[3], next[3];
326 unsigned int this_s, start_s, next_s, pregap;
329 CDR_getTD(cdr.CurTrack, start);
330 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
332 CDR_getTD(cdr.CurTrack + 1, next);
335 // last track - cd size
337 next[0] = cdr.SetSectorEnd[2];
338 next[1] = cdr.SetSectorEnd[1];
339 next[2] = cdr.SetSectorEnd[0];
342 this_s = msf2sec(time);
343 start_s = fsm2sec(start);
344 next_s = fsm2sec(next);
346 cdr.TrackChanged = FALSE;
348 if (next_s - this_s < pregap) {
349 cdr.TrackChanged = TRUE;
356 relative_s = this_s - start_s;
357 if (relative_s < 0) {
359 relative_s = -relative_s;
361 sec2msf(relative_s, cdr.subq.Relative);
363 cdr.subq.Track = itob(cdr.CurTrack);
364 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
365 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
366 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
367 cdr.subq.Absolute[0] = itob(time[0]);
368 cdr.subq.Absolute[1] = itob(time[1]);
369 cdr.subq.Absolute[2] = itob(time[2]);
372 static void ReadTrack(const u8 *time) {
373 unsigned char tmp[3];
377 tmp[0] = itob(time[0]);
378 tmp[1] = itob(time[1]);
379 tmp[2] = itob(time[2]);
381 if (memcmp(cdr.Prev, tmp, 3) == 0)
384 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
386 cdr.RErr = CDR_readTrack(tmp);
387 memcpy(cdr.Prev, tmp, 3);
392 subq = (struct SubQ *)CDR_getBufferSub();
393 if (subq != NULL && cdr.CurTrack == 1) {
394 crc = calcCrc((u8 *)subq + 12, 10);
395 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
396 cdr.subq.Track = subq->TrackNumber;
397 cdr.subq.Index = subq->IndexNumber;
398 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
399 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
402 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
403 tmp[0], tmp[1], tmp[2]);
410 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
411 cdr.subq.Track, cdr.subq.Index,
412 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
413 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
416 static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
418 if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) {
424 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
433 static void cdrPlayInterrupt_Autopause()
436 boolean abs_lev_chselect;
439 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
440 CDR_LOG( "CDDA STOP\n" );
442 // Magic the Gathering
443 // - looping territory cdda
446 //cdr.ResultReady = 1;
447 //cdr.Stat = DataReady;
453 else if (cdr.Mode & MODE_REPORT) {
454 CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
455 cdr.Result[0] = cdr.StatP;
456 cdr.Result[1] = cdr.subq.Track;
457 cdr.Result[2] = cdr.subq.Index;
459 abs_lev_chselect = cdr.subq.Absolute[1] & 0x01;
461 /* 8 is a hack. For accuracy, it should be 588. */
462 for (i = 0; i < 8; i++)
464 abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect]));
466 abs_lev_max = MIN_VALUE(abs_lev_max, 32767);
467 abs_lev_max |= abs_lev_chselect << 15;
469 if (cdr.subq.Absolute[2] & 0x10) {
470 cdr.Result[3] = cdr.subq.Relative[0];
471 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
472 cdr.Result[5] = cdr.subq.Relative[2];
475 cdr.Result[3] = cdr.subq.Absolute[0];
476 cdr.Result[4] = cdr.subq.Absolute[1];
477 cdr.Result[5] = cdr.subq.Absolute[2];
480 cdr.Result[6] = abs_lev_max >> 0;
481 cdr.Result[7] = abs_lev_max >> 8;
483 // Rayman: Logo freeze (resultready + dataready)
485 cdr.Stat = DataReady;
493 void cdrPlayInterrupt()
495 if (cdr.Seeked == SEEK_PENDING) {
497 CDR_LOG_I("cdrom: seek stat hack\n");
502 cdr.StatP |= STATUS_ROTATING;
503 cdr.StatP &= ~STATUS_SEEK;
504 cdr.Result[0] = cdr.StatP;
505 cdr.Seeked = SEEK_DONE;
511 if (cdr.SetlocPending) {
512 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
513 cdr.SetlocPending = 0;
514 cdr.m_locationChanged = TRUE;
516 Find_CurTrack(cdr.SetSectorPlay);
517 ReadTrack(cdr.SetSectorPlay);
518 cdr.TrackChanged = FALSE;
521 if (!cdr.Play) return;
523 CDR_LOG( "CDDA - %d:%d:%d\n",
524 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
526 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
528 cdr.TrackChanged = TRUE;
531 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
532 cdrPlayInterrupt_Autopause();
534 if (!cdr.Play) return;
536 if (CDR_readCDDA && !cdr.Muted && cdr.Mode & MODE_REPORT) {
537 cdrAttenuate((u8 *)read_buf, CD_FRAMESIZE_RAW / 4, 1);
538 if (SPU_playCDDAchannel)
539 SPU_playCDDAchannel((u8 *)read_buf, CD_FRAMESIZE_RAW);
542 cdr.SetSectorPlay[2]++;
543 if (cdr.SetSectorPlay[2] == 75) {
544 cdr.SetSectorPlay[2] = 0;
545 cdr.SetSectorPlay[1]++;
546 if (cdr.SetSectorPlay[1] == 60) {
547 cdr.SetSectorPlay[1] = 0;
548 cdr.SetSectorPlay[0]++;
552 if (cdr.m_locationChanged)
554 CDRMISC_INT(cdReadTime * 30);
555 cdr.m_locationChanged = FALSE;
559 CDRMISC_INT(cdReadTime);
562 // update for CdlGetlocP/autopause
563 generate_subq(cdr.SetSectorPlay);
566 void cdrInterrupt() {
568 int no_busy_error = 0;
569 int start_rotating = 0;
572 unsigned int seekTime = 0;
576 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
585 cdr.Result[0] = cdr.StatP;
586 cdr.Stat = Acknowledge;
588 if (cdr.IrqRepeated) {
590 if (cdr.eCycle > psxRegs.cycle) {
600 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
601 cdr.StatP &= ~STATUS_SHELLOPEN;
611 if (cdr.Seeked == SEEK_PENDING) {
612 // XXX: wrong, should seek instead..
613 cdr.Seeked = SEEK_DONE;
615 if (cdr.SetlocPending) {
616 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
617 cdr.SetlocPending = 0;
618 cdr.m_locationChanged = TRUE;
622 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
624 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
625 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
626 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
630 int track = btoi( cdr.Param[0] );
632 if (track <= cdr.ResultTN[1])
633 cdr.CurTrack = track;
635 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
637 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
638 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
639 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
640 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
645 Rayman: detect track changes
648 Twisted Metal 2: skip PREGAP + starting accurate SubQ
649 - plays tracks without retry play
651 Wild 9: skip PREGAP + starting accurate SubQ
652 - plays tracks without retry play
654 Find_CurTrack(cdr.SetSectorPlay);
655 ReadTrack(cdr.SetSectorPlay);
656 cdr.TrackChanged = FALSE;
659 CDR_play(cdr.SetSectorPlay);
661 // Vib Ribbon: gameplay checks flag
662 cdr.StatP &= ~STATUS_SEEK;
663 cdr.Result[0] = cdr.StatP;
665 cdr.StatP |= STATUS_PLAY;
667 // BIOS player - set flag again
670 CDRMISC_INT( cdReadTime );
675 // TODO: error 80 if stopped
678 // GameShark CD Player: Calls 2x + Play 2x
679 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
680 else cdr.FastForward++;
682 cdr.FastBackward = 0;
688 // GameShark CD Player: Calls 2x + Play 2x
689 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
690 else cdr.FastBackward++;
696 if (cdr.DriveState != DRIVESTATE_STOPPED) {
697 error = ERROR_INVALIDARG;
700 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
704 case CdlStandby + 0x100:
710 // grab time for current track
711 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
713 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
714 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
715 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
722 if (cdr.DriveState == DRIVESTATE_STANDBY)
723 delay = cdReadTime * 30 / 2;
725 cdr.DriveState = DRIVESTATE_STOPPED;
726 AddIrqQueue(CdlStop + 0x100, delay);
729 case CdlStop + 0x100:
730 cdr.StatP &= ~STATUS_ROTATING;
731 cdr.Result[0] = cdr.StatP;
737 Gundam Battle Assault 2: much slower (*)
738 - Fixes boot, gameplay
740 Hokuto no Ken 2: slower
741 - Fixes intro + subtitles
743 InuYasha - Feudal Fairy Tale: slower
746 /* Gameblabla - Tightening the timings (as taken from Duckstation).
747 * The timings from Duckstation are based upon hardware tests.
748 * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
749 * seems to be timing sensitive as it can depend on the CPU's clock speed.
751 if (cdr.DriveState != DRIVESTATE_STANDBY)
757 delay = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * (1000000));
758 CDRMISC_INT((cdr.Mode & MODE_SPEED) ? cdReadTime / 2 : cdReadTime);
760 AddIrqQueue(CdlPause + 0x100, delay);
764 case CdlPause + 0x100:
765 cdr.StatP &= ~STATUS_READ;
766 cdr.Result[0] = cdr.StatP;
772 cdr.Mode = 0x20; /* This fixes This is Football 2, Pooh's Party lockups */
773 AddIrqQueue(CdlReset + 0x100, 4100000);
778 case CdlReset + 0x100:
791 cdr.File = cdr.Param[0];
792 cdr.Channel = cdr.Param[1];
800 /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
802 cdr.Result[1] = cdr.Mode;
804 cdr.Result[3] = cdr.File;
805 cdr.Result[4] = cdr.Channel;
811 memcpy(cdr.Result, cdr.Transfer, 8);
816 memcpy(&cdr.Result, &cdr.subq, 8);
818 if (!cdr.Play && !cdr.Reading)
819 cdr.Result[1] = 0; // HACK?
822 case CdlReadT: // SetSession?
824 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
828 case CdlReadT + 0x100:
834 if (CDR_getTN(cdr.ResultTN) == -1) {
835 cdr.Stat = DiskError;
836 cdr.Result[0] |= STATUS_ERROR;
838 cdr.Stat = Acknowledge;
839 cdr.Result[1] = itob(cdr.ResultTN[0]);
840 cdr.Result[2] = itob(cdr.ResultTN[1]);
845 cdr.Track = btoi(cdr.Param[0]);
847 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
848 cdr.Stat = DiskError;
849 cdr.Result[0] |= STATUS_ERROR;
851 cdr.Stat = Acknowledge;
852 cdr.Result[0] = cdr.StatP;
853 cdr.Result[1] = itob(cdr.ResultTD[2]);
854 cdr.Result[2] = itob(cdr.ResultTD[1]);
855 /* According to Nocash's documentation, the function doesn't care about ff.
856 * This can be seen also in Mednafen's implementation. */
857 //cdr.Result[3] = itob(cdr.ResultTD[0]);
865 cdr.StatP |= STATUS_SEEK;
868 Crusaders of Might and Magic = 0.5x-4x
869 - fix cutscene speech start
875 - fix cutscene speech
880 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
881 cdr.Seeked = SEEK_PENDING;
886 switch (cdr.Param[0]) {
887 case 0x20: // System Controller ROM Version
889 memcpy(cdr.Result, Test20, 4);
893 memcpy(cdr.Result, Test22, 4);
895 case 0x23: case 0x24:
897 memcpy(cdr.Result, Test23, 4);
904 AddIrqQueue(CdlID + 0x100, 20480);
909 cdr.Result[0] = cdr.StatP;
914 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
915 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
916 cdr.Result[1] = 0xc0;
920 cdr.Result[1] |= 0x10;
921 if (CdromId[0] == '\0')
922 cdr.Result[1] |= 0x80;
924 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
926 strncpy((char *)&cdr.Result[4], "PCSX", 4);
931 // yes, it really sets STATUS_SHELLOPEN
932 cdr.StatP |= STATUS_SHELLOPEN;
933 cdr.DriveState = DRIVESTATE_RESCAN_CD;
944 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
949 case CdlReadToc + 0x100:
956 if (cdr.SetlocPending) {
957 seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
958 if(seekTime > 1000000) seekTime = 1000000;
959 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
960 cdr.SetlocPending = 0;
961 cdr.m_locationChanged = TRUE;
963 Find_CurTrack(cdr.SetSectorPlay);
965 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
966 // Read* acts as play for cdda tracks in cdda mode
972 // Fighting Force 2 - update subq time immediately
974 ReadTrack(cdr.SetSectorPlay);
977 // Crusaders of Might and Magic - update getlocl now
978 // - fixes cutscene speech
980 u8 *buf = CDR_getBuffer();
982 memcpy(cdr.Transfer, buf, 8);
986 Duke Nukem: Land of the Babes - seek then delay read for one frame
988 C-12 - Final Resistance - doesn't like seek
991 if (cdr.Seeked != SEEK_DONE) {
992 cdr.StatP |= STATUS_SEEK;
993 cdr.StatP &= ~STATUS_READ;
995 // Crusaders of Might and Magic - use short time
996 // - fix cutscene speech (startup)
998 // ??? - use more accurate seek time later
999 CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1) + seekTime);
1001 cdr.StatP |= STATUS_READ;
1002 cdr.StatP &= ~STATUS_SEEK;
1004 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1007 cdr.Result[0] = cdr.StatP;
1012 CDR_LOG_I("Invalid command: %02x\n", Irq);
1013 error = ERROR_INVALIDCMD;
1018 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1019 cdr.Result[1] = error;
1020 cdr.Stat = DiskError;
1024 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1025 cdr.DriveState = DRIVESTATE_STANDBY;
1026 cdr.StatP |= STATUS_ROTATING;
1029 if (!no_busy_error) {
1030 switch (cdr.DriveState) {
1031 case DRIVESTATE_LID_OPEN:
1032 case DRIVESTATE_RESCAN_CD:
1033 case DRIVESTATE_PREPARE_CD:
1035 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1036 cdr.Result[1] = ERROR_NOTREADY;
1037 cdr.Stat = DiskError;
1046 #ifdef CDR_LOG_CMD_IRQ
1049 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1050 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1051 for (i = 0; i < cdr.ResultC; i++)
1052 SysPrintf("%02x ", cdr.Result[i]);
1059 #define ssat32_to_16(v) \
1060 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1062 #define ssat32_to_16(v) do { \
1063 if (v < -32768) v = -32768; \
1064 else if (v > 32767) v = 32767; \
1068 void cdrAttenuate(s16 *buf, int samples, int stereo)
1071 int ll = cdr.AttenuatorLeftToLeft;
1072 int lr = cdr.AttenuatorLeftToRight;
1073 int rl = cdr.AttenuatorRightToLeft;
1074 int rr = cdr.AttenuatorRightToRight;
1076 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1079 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1083 for (i = 0; i < samples; i++) {
1086 l = (l * ll + r * rl) >> 7;
1087 r = (r * rr + l * lr) >> 7;
1095 for (i = 0; i < samples; i++) {
1097 l = l * (ll + rl) >> 7;
1098 //r = r * (rr + lr) >> 7;
1106 void cdrReadInterrupt() {
1112 if (cdr.Irq || cdr.Stat) {
1113 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1120 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1121 cdr.StatP &= ~STATUS_SEEK;
1122 cdr.Result[0] = cdr.StatP;
1123 cdr.Seeked = SEEK_DONE;
1125 ReadTrack(cdr.SetSectorPlay);
1127 buf = CDR_getBuffer();
1131 if (cdr.RErr == -1) {
1132 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1133 memset(cdr.Transfer, 0, DATA_SIZE);
1134 cdr.Stat = DiskError;
1135 cdr.Result[0] |= STATUS_ERROR;
1136 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1140 memcpy(cdr.Transfer, buf, DATA_SIZE);
1141 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1144 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1146 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1147 // Firemen 2: Multi-XA files - briefings, cutscenes
1148 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1149 cdr.File = cdr.Transfer[4 + 0];
1150 cdr.Channel = cdr.Transfer[4 + 1];
1154 * Skips playing on channel 255.
1155 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1156 * TODO : Check if this is the proper behaviour.
1158 if((cdr.Transfer[4 + 2] & 0x4) &&
1159 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1160 (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
1161 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1163 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1164 SPU_playADPCMchannel(&cdr.Xa);
1165 cdr.FirstSector = 0;
1167 else cdr.FirstSector = -1;
1171 cdr.SetSectorPlay[2]++;
1172 if (cdr.SetSectorPlay[2] == 75) {
1173 cdr.SetSectorPlay[2] = 0;
1174 cdr.SetSectorPlay[1]++;
1175 if (cdr.SetSectorPlay[1] == 60) {
1176 cdr.SetSectorPlay[1] = 0;
1177 cdr.SetSectorPlay[0]++;
1183 uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1184 if (cdr.m_locationChanged) {
1185 CDREAD_INT(delay * 30);
1186 cdr.m_locationChanged = FALSE;
1192 Croc 2: $40 - only FORM1 (*)
1193 Judge Dredd: $C8 - only FORM1 (*)
1194 Sim Theme Park - no adpcm at all (zero)
1197 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1198 cdr.Stat = DataReady;
1202 // update for CdlGetlocP
1203 ReadTrack(cdr.SetSectorPlay);
1212 bit 5 - 1 result ready
1214 bit 7 - 1 command being processed
1217 unsigned char cdrRead0(void) {
1218 if (cdr.ResultReady)
1226 // cdr.Ctrl &= ~0x40;
1228 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1231 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1233 return psxHu8(0x1800) = cdr.Ctrl;
1236 void cdrWrite0(unsigned char rt) {
1237 CDR_LOG_IO("cdr w0: %02x\n", rt);
1239 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1242 unsigned char cdrRead1(void) {
1243 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1244 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1248 if (cdr.ResultP == cdr.ResultC)
1249 cdr.ResultReady = 0;
1251 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1253 return psxHu8(0x1801);
1256 void cdrWrite1(unsigned char rt) {
1260 CDR_LOG_IO("cdr w1: %02x\n", rt);
1262 switch (cdr.Ctrl & 3) {
1266 cdr.AttenuatorRightToRightT = rt;
1275 #ifdef CDR_LOG_CMD_IRQ
1276 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1278 SysPrintf(" Param[%d] = {", cdr.ParamC);
1279 for (i = 0; i < cdr.ParamC; i++)
1280 SysPrintf(" %x,", cdr.Param[i]);
1287 cdr.ResultReady = 0;
1289 // cdr.Stat = NoIntr;
1290 AddIrqQueue(cdr.Cmd, 0x800);
1294 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1296 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
1297 if (((cdr.Param[0] & 0x0F) > 0x09) || (cdr.Param[0] > 0x99) || ((cdr.Param[1] & 0x0F) > 0x09) || (cdr.Param[1] >= 0x60) || ((cdr.Param[2] & 0x0F) > 0x09) || (cdr.Param[2] >= 0x75))
1299 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1303 for (i = 0; i < 3; i++)
1305 set_loc[i] = btoi(cdr.Param[i]);
1308 i = msf2sec(cdr.SetSectorPlay);
1309 i = abs(i - msf2sec(set_loc));
1311 cdr.Seeked = SEEK_PENDING;
1313 memcpy(cdr.SetSector, set_loc, 3);
1314 cdr.SetSector[3] = 0;
1315 cdr.SetlocPending = 1;
1328 cdr.Seeked = SEEK_DONE;
1334 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1336 cdr.Mode = cdr.Param[0];
1338 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1339 // - fixes choppy movie sound
1340 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1346 unsigned char cdrRead2(void) {
1349 if (cdr.Readed == 0) {
1355 CDR_LOG_IO("cdr r2: %02x\n", ret);
1359 void cdrWrite2(unsigned char rt) {
1360 CDR_LOG_IO("cdr w2: %02x\n", rt);
1362 switch (cdr.Ctrl & 3) {
1364 if (cdr.ParamC < 8) // FIXME: size and wrapping
1365 cdr.Param[cdr.ParamC++] = rt;
1372 cdr.AttenuatorLeftToLeftT = rt;
1375 cdr.AttenuatorRightToLeftT = rt;
1380 unsigned char cdrRead3(void) {
1382 psxHu8(0x1803) = cdr.Stat | 0xE0;
1384 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1386 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1387 return psxHu8(0x1803);
1390 void cdrWrite3(unsigned char rt) {
1391 CDR_LOG_IO("cdr w3: %02x\n", rt);
1393 switch (cdr.Ctrl & 3) {
1403 cdr.AttenuatorLeftToRightT = rt;
1407 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1408 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1409 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1410 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1415 if ((rt & 0x80) && cdr.Readed == 0) {
1417 pTransfer = cdr.Transfer;
1419 switch (cdr.Mode & 0x30) {
1420 case MODE_SIZE_2328:
1425 case MODE_SIZE_2340:
1435 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1440 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1445 if (cdr.Readed == 0) {
1446 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1450 cdsize = (bcr & 0xffff) * 4;
1452 // Ape Escape: bcr = 0001 / 0000
1456 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1457 case MODE_SIZE_2340: cdsize = 2340; break;
1458 case MODE_SIZE_2328: cdsize = 2328; break;
1460 case MODE_SIZE_2048: cdsize = 2048; break;
1465 ptr = (u8 *)PSXM(madr);
1467 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1472 GS CDX: Enhancement CD crash
1475 - Spams DMA3 and gets buffer overrun
1477 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1482 memcpy(ptr, pTransfer, size);
1485 psxCpu->Clear(madr, cdsize / 4);
1486 pTransfer += cdsize;
1488 if( chcr == 0x11400100 ) {
1489 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1490 CDRDMA_INT( (cdsize/4) / 4 );
1492 else if( chcr == 0x11000000 ) {
1493 // CDRDMA_INT( (cdsize/4) * 1 );
1495 psxRegs.cycle += (cdsize/4) * 24/2;
1501 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1505 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1509 void cdrDmaInterrupt()
1511 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1513 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1518 static void getCdInfo(void)
1522 CDR_getTN(cdr.ResultTN);
1523 CDR_getTD(0, cdr.SetSectorEnd);
1524 tmp = cdr.SetSectorEnd[0];
1525 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1526 cdr.SetSectorEnd[2] = tmp;
1530 memset(&cdr, 0, sizeof(cdr));
1536 cdr.DriveState = DRIVESTATE_STANDBY;
1537 cdr.StatP = STATUS_ROTATING;
1538 pTransfer = cdr.Transfer;
1539 cdr.SetlocPending = 0;
1540 cdr.m_locationChanged = FALSE;
1542 // BIOS player - default values
1543 cdr.AttenuatorLeftToLeft = 0x80;
1544 cdr.AttenuatorLeftToRight = 0x00;
1545 cdr.AttenuatorRightToLeft = 0x00;
1546 cdr.AttenuatorRightToRight = 0x80;
1551 int cdrFreeze(void *f, int Mode) {
1555 if (Mode == 0 && !Config.Cdda)
1558 cdr.freeze_ver = 0x63647202;
1559 gzfreeze(&cdr, sizeof(cdr));
1562 cdr.ParamP = cdr.ParamC;
1563 tmp = pTransfer - cdr.Transfer;
1566 gzfreeze(&tmp, sizeof(tmp));
1571 pTransfer = cdr.Transfer + tmp;
1573 // read right sub data
1574 tmpp[0] = btoi(cdr.Prev[0]);
1575 tmpp[1] = btoi(cdr.Prev[1]);
1576 tmpp[2] = btoi(cdr.Prev[2]);
1581 if (cdr.freeze_ver < 0x63647202)
1582 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1584 Find_CurTrack(cdr.SetSectorPlay);
1586 CDR_play(cdr.SetSectorPlay);
1589 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1590 // old versions did not latch Reg2, have to fixup..
1591 if (cdr.Reg2 == 0) {
1592 SysPrintf("cdrom: fixing up old savestate\n");
1595 // also did not save Attenuator..
1596 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1597 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1599 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1607 void LidInterrupt() {
1610 cdrLidSeekInterrupt();